Suppress memory errors on tracked_objects.

tools/valgrind/tsan/suppressions.txt

 # There are a few kinds of suppressions in this file.
 # 1. third party stuff we have no control over
 #
 # 2. intentional unit test errors, or stuff that is somehow a false positive
 # in our own code, or stuff that is so trivial it's not worth fixing
 #
 # 3. Suppressions for real chromium bugs that are not yet fixed.
 # These should all be in chromium's bug tracking system (but a few aren't yet).
 # Periodically we should sweep this file and the bug tracker clean by
 # running overnight and removing outdated bugs/suppressions.
@@ skipping 254 matching lines @@
   fun:*Log*
   ...
   fun:*Worker*
   ...
   obj:*ipc_tests
 }
 
 {
   bug_68481 [test-only race on bool]
   ThreadSanitizer:Race
-  fun:tracked_objects::ThreadData::StartTracking*
-  fun:tracked_objects::TrackedObjectsTest_MinimalStartupShutdown_Test::TestBody*
+  ...
+  fun:tracked_objects::ThreadData::ShutdownSingleThreadedCleanup
+  fun:tracked_objects::TrackedObjectsTest_MinimalStartupShutdown_Test::*
 }
 
 # TODO(timurrrr): bug item
 {
   Data race on bool in AssertReporter [test-only]
   ThreadSanitizer:Race
   ...
   fun:*AssertReporter*warn*
 }
 
@@ skipping 350 matching lines @@
   ThreadSanitizer:Race
   fun:content::BrowserThreadImpl::~BrowserThreadImpl
   fun:content::TestBrowserThread::~TestBrowserThread
 }
 {
   bug_102134b
   ThreadSanitizer:Race
   fun:BrowserThread::~BrowserThread
   fun:DeprecatedBrowserThread::~DeprecatedBrowserThread
 }
+{
+  bug_102327_a
+  ThreadSanitizer:Race
+  fun:tracked_objects::ThreadData::Initialize
+  fun:tracked_objects::ThreadData::InitializeThreadContext
+  fun:base::Thread::ThreadMain
+  fun:base::::ThreadFunc
+}
+{
+  bug_102327_b
+  ThreadSanitizer:Race
+  ...
+  fun:tracked_objects::ThreadData::TallyABirthIfActive
+  fun:base::PosixDynamicThreadPool::PendingTask::PendingTask
+  fun:base::PosixDynamicThreadPool::WaitForTask
+  fun:base::::WorkerThread::ThreadMain
+  fun:base::::ThreadFunc
+}